diff --git a/pmostools/peptools/kumo.py b/pmostools/peptools/kumo.py
index 9e08faf..6bc128b 100644
--- a/pmostools/peptools/kumo.py
+++ b/pmostools/peptools/kumo.py
@@ -61,6 +61,7 @@ def add_new_ssb():
     dcon.commit()
     ssb_value.delete('1.0', tk.END)
     urladdr_value.delete('1.0', tk.END)
+    pwin.destroy()
     os.system('python3 ' +  spath +  '/refresh.py')